Steam-engine.



E. LUGINBUHL.

STEAM ENGINE.

APPLICATION FILED JUNE 10, 1914.

1,1 32,782. V Patented Mar. 23, 1915-.

3'SHEETSSHEET 1.

t o o [I Wilma: o

THE NORRIS PETERS CO. PHOTOJJTHOH WASHINGTON, D. C

E. LUGINBUHL.

STEAM ENGINE.

APPLICATION FILED JUNE 10, 1914.

' 1,1 32,782. Patented Mar. 23, 1915.

3 SHBETSSHEET 2.

a? 6027 3 AW THE NORRIS PETERS C0 P'1'3|0-L!THQ, WAsHlNOmN. D.

E. LUGINBUHL.

STEAM ENGINE.

1 APPLICATION FILED JUNE 10, 1914. 1,1 32,782 Patented Mar. 23, 1915.

3 SHEETS8HEET 3.

'IIIII'II 0 =2 :5 d 6 "Ill/11111111111100 i Jrwwn fo'c EL uyina 77Z W117: worm aat THE NORRIS F'ETERS 60., PHOTO-LITHO. WASHINGTON D. C.

parts.-

iinrrnn stares rad um carton] ELIAS LUGINBUEL, or lvolawoob, onio.

STEAM-ENGINE.

To all tv hom it may concern:

Be it known that I, ELIAs LUGmBnnI, a

citizen of the United States, residing at Norwood, in the county of Hamilton, State of Ohio, have invented certain new and useful Improvements in Steam-Engines; and Iclo hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make anduse the same. f q p This invention relates to steam engines, more particularly to that, type of engines in which the'eylinder and piston are independently movable.

' he object of the present invention is the provision of an improved engine of this type so constructed that the loss of power occasioned by the pressure upon the station'- ary cylinder: heads will be reduced to a minimum thereby obviating the great disadvantage of the. detrimental vibration caused by such loss. by I H An importantobject; is tof provide an enof this cha'raeter which a portion o the steam utilized tor serving as a pneumatic bufi'e'r' to muffle or deaden the shock of theman impact of the moving More specifically an teaser the inven} tion'is' to providean engine having av Iiiini mum number of parts and Spaauy eiii'} laying only a single valve operating and iston at the extremi f their sabre,

Fig/4E is assent view with the movable cylinder and \pistona't the other extremity of'their stroke, Fig. 5 is a horizontal sectional view showing the" controlling valve and its associated parts in top plan, Fig. 6-

is; a vertical cross sectienaL view along the line" 6-"6" of Fig. 4,'Fig'l 7 is a cross sec Specification of Letters Patent. Patef ted H13 1,- 23 1915; Application filed. Me 16,1914. Serial no. 844,233. I i r tional view on the'line 74' of Fig. 5, and,

F 8 is a similar view on the line 88 oi Fig. 5,,F1'g. 9 is a perspective view of the valvedetached, and, Fig. 10 is a rear view ofthe main cylinder with the valve casing attached, b H: lieferring more particularly to the draw- 1ngs,the numeral 10 designates the supporting base or bed of my improved engine upon the forward endof which is-journaleda crank shaft 11 provided with cranks 12 and 13 and also provided with the usual 'fiywheel 14: On'the other end of the 10 1s a stationaryguide cylinder 15 which is closed at its outer end by a head l6 an'd-at 7 ts inner end by a head 17 provided with packing glands 18 and'l 9, for a purpose to be describedr Upon the lower side of the stationary cylinder 15 is provided, a valve casing 2 0 within which is inounteda valve for controlling the inlet and outlet of steam in the engine. r y l f A reciprocatory cylinder 21 is disposed within the cylinder 15" and provideclwith a piston rod 22 which egitends through the gland 18 and is connected with the crank 13, Upon its lower side the cylinder 21 is proyided with passages and 24: which communicate withth e interior of the ,cylin: der 2l through ports 25, and 26, As the cylinder 2f1 slidesback'and forth within the cylinder 15 its heads 29 and 30 are adapted pdvii a nc ver p rt 2 21116128111 t lower side of. the cylinder 15. The cylinder 15 is provid'ed with ports 31 and 32 com,-

municating with the passages 23 and 24: b

respectively. p v 5, ,2

A piston 33 is slidab'ly mounted within the cylinder 31 and has securedthereto a piston rod v 34: which extends forwardly and isconnected with the" crank 12 afterpassing through the glaIid 19 in the head17'and' a i similar gland 35 in the head 29 of the cylinder 21. These glands are solely for the purpose of forming perfectly steam-tight joints. As the piston 33 slides back and forth within the cylinder 21 itis adapted 1 to'cover and uncover the ports25and2 6.

The valve casing 20 ,is provided with a y dr cal op i g; 1 6 v 'f n lg ran k versely ofthe axle of the cylinders within which is revolubly mounted a valve, desig nated as 'a whole by the: numeral 37,,A steam inlet pipe 38 communicates with a Passage 9i rmedthr 1 gh wca' 30 and communicating with the opening 361 Referring more particularly to Fig. 5 in the drawings, the numeral 40 designates a steam passage communicating with the port 27 and with a port 41 communicating with the opening 36. The numeral 42 designates a similar passage communicating with the port 28 and a port 43 communicating with the opening 36. Other ports 44 and 45 also communicate with the opening 36. The casing 20 is further provided with ports 46 and 47 communicating with the ports 31 and 32, respectively. The valve 37 is provided with a plurality of passages for controlling the passage of steam through the ports just described and the arrangement and formation of these passages will be brought out in the description of the operation, for the sake of clearness. The casing 20 is further provided with exhaust ports 48 and 49 formed through its lower wall and communicating with the opening 36 and with an outlet pipe 50.

The valve 37 is provided in alinement with the port 43 with a passage 51 extending over half way of the periphery of the valve. A similar passage 52 is formed in the opposite end of the valve 37 and in alinement with the port 41, the passage 52 being disposed at substantially right angles to the passage 51. The valve 37 is also provided intermediate its ends with a spiral passage 53 extending substantially threefourths the way around the valve.

The operation of the engine is as follows: Assuming that the cylinder 31 and piston 33 are in the positions shown in Fig. 3 of the drawings, the valve 37 is turned by mechanism to be described, to bring the passage 53 into registration with the steam inlet passage 39 and the port 46, whereupon steamwill pass from the pipe 38, through the passage 53, port 46, and port 31, into the passage 23, and thence into the cylinder 21 behind the piston 33, thereby forcing the piston 33 rearwardly and forcing the cylinder 21 forwardly. As the cylinder and piston move as described, exhaust steam in advance of the piston 33 will be forced through the port 26, into the passage 24, and thence through the port 32 and into the passage 54, whence it will pass through the port 44 and into the port 43 whence it will be carried through the passage 51, registering with the exhaust port 48 and outwardly through the pipe 50. At the same time, steam in advance of the cylinder 21 will be forced through the port 27, passage 40, port 41, through the passage 52, in the valve 37, and out through the exhaust port 49. The intake valve passage is so formed that the inlet ports 46 and 47 will be closed when the engine has made three-fourths of its stroke, and the exhaust ports 41, 43, 44 and 45 will stay open to nearly the end of the stroke, thereby allowing for compression.

After the cylinder 21 and valve 33 have reached the end of their stroke, the valve 37 will be rotated so as to reverse the inlet, that is, steam will pass from the inlet pipe 38 through the passage 53, port 47, and out through the port 38 into the passage 24 and in front of the piston 33, forcing the piston 33 and cylinder 21 back into their original positions. As this movement takes place the exhaust steam will be forced from in advance of the cylinder 21 through the port 28, passage 42, port 43, passage 51, and port 18 into the exhaust pipe 50. At the same time, steam in advance of the piston 33 will be forced through the port 25, passage 33, port 31, port 46, passage 35, whence it will pass upwardly, then through the port 45, into the port 41, and through exhaust port 49 into the pipe 50.

In order to rock the valve 37 so as to bring the various passages thereon into proper alinement with the various ports, the valve 37 is provided with an axial spindle 56 upon which is secured a rocker arm 57 to which is properly connected a pitman 58 connected to an eccentric mounted on the crank shaft 11. As the crank shaft is rotated, the pitman 58 will rock the arm 57, thus imparting suflicient movement to the valve 37 to operate it in unison with the movement of the cylinder 21 and piston 32 for properly alining the passages in the valve 37 with the ports in the casing 30.

From the foregoing it will be apparent that I have thus provided an engine of the character described, the steam circuit of which is controlled by a single valve.

It will be readily understood that various changes in the form, construction, and arrangement of parts may be resorted to without departing from the spirit of the invention or limiting the scope of the subjoined claims.

Having thus described my invention, what I claim is 1. An engine comprising a closed cylinder, a second cylinder slidable therein and provided adjacent each end with an inlet port, a piston slidable within said second named cylinder, said piston and said second named cylinder having operable connection with a crank shaft, a casing connected with said first named cylinder and provided with independent parallel passages communicating with ports adjacent the ends of said first named cylinder, a valve revolubly mounted within said casing and provided with passages for establishing communication between said parallel passages and exhaust ports in said casing, said casing being further provided with a steam inlet passage, said valve being provided with a passage adapted to establish communication between said inlet passage and with ports communicating with said first named cylinder, said last named ports being adapted to communicate with the ports in said second named cylinder at different stages of the movement of said second named cylinder, said valve being further provided with passages for establishing communication between each of said parallel passages and said second cent its ends, a piston slidable within said second named cylinder, said piston and said second named cylinder having operable connection with a crank shaft,.a valve casing connected with said first named cylinder and provided with passages communicating with said first named cylinder adjacent its ends, a valve revolubly mounted within said casing and operably connected with said crank shaft, said valve being provided with passages for establishing communication between said second named passages and exhaust ports in said casing, said casing being provided with a convolutepassage-adapted to establish communication between said inlet passage and ports formed in said first named cylinder, said valve being provided with a passage for establishing communication between one of said ports and one of said second named passages and provided with an additional passage for establishing communication between the other of said' ports and thelother of said second named passages, said ports being adapted to communicate with said first named passages at different stages of the strokes of said movable cylinder and said piston.

In testimony whereof, I afiix my signature, in the presence of two witnesses. V r ELIAS LUGINBUHL.

Witnesses:

GERRIT J i BAIDT, NELLIE RAIDT.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, .D. G. v 

